The code PO300 indicates a random or multiple cylinder misfire detected by the vehicle's onboard diagnostics in a 1996 Buick Roadmaster. This means that the engine is misfiring in one or more cylinders, which can lead to poor performance, increased emissions, and potential engine damage if not addressed. Possible causes include faulty spark plugs, ignition coils, fuel delivery issues, or vacuum leaks. It's advisable to diagnose the specific problem to resolve the misfire and restore optimal engine performance.
Most obdii codes are multi-digit, such as po300,po301,po302, etc. Etc. Po300's are usally misfire codes pertaining to the same cylinder...code po302 is a misfire in cylinder #2. A po300 code is a random misfire for any cylinder
answer : Random Misfire
po300-Random/multiple cylinder misfire detected. po303-Cylinder no. 3 misfire detected. po306-cylinder no. 6 misfire detected po300-Random/multiple cylinder misfire detected. po303-Cylinder no. 3 misfire detected. po306-cylinder no. 6 misfire detected
Random cylinder misfire
P0300 means random misfire detected which probably has to do with the spark plugs or the plug wires
a po300 code is a random misfire code witch means it is not just missing on just one cly. witch kind of eliminates a ignition problem unless you have multiple ignition parts going bad more likely a fuel problem or vacuum leak
P0300 is for random engine misfire p0301 and p0305 are misfires on cylinders # 1 and #5 www.lextechautomotivellc.com
PO300 is random cylinder misfire. This can eventually destroy your catalytic converter and the O2 sensors. So, you need to have this repaired immediately.
the code means: random/multiple cylinder misfire detected, po300, it could be wires,spark plugs, bad coils, etc.
misfire
My book shows P0300=Random/Multiple Cylinder Misfire Detected. P0342=Camshaft Position Sensor Circuit Low Input. Hopefully this helps you out.
This just happenned to me. I was getting a code PO300. It turned out to be the ignition control module. It cost 78.00 at autozone and only took 10 minutes to replace.